While based in Oakland and Berkeley, California from 1967 to 1972, she taught at the University of California, Berkeley's extension program, commenced research into ancient culture in earnest and expanded her practice to include kinetic sculpture, liquid light shows, performance art and collaborations with engineers.

It describes her theory of how the Hebrews suppressed goddess-worshipping religions practiced in Canaan and how their reaction to what she says were existing matriarchial and matrilineal societal structures shaped Judaism and thus Christianity.

[5] Her theory builds on the ideas of Robert Graves,[6] but rather than starting from his work, Stone gathered material from the "libraries, museums, universities, and excavation sites of the United States, Europe and the Near East.

"[7] She observed within these materials "the sexual and religious bias of many of the erudite scholars of the nineteenth and twentieth centuries",[8] and challenges many of their conclusions, raising doubts about the criticisms of Graves's theories.

[9] After residing in London (1972-1974; 1975) and Quadra Island, British Columbia (1974-1975), she and her life partner, Lenny Schneir, met in Miami Beach, Florida in 1976 while Stone (who had been recently widowed by her second husband) was serving as a caregiver for her father.